| 应用MIBK-冰醋酸体系改进无铅汽油中铅含量的测定 |
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| 引用本文： | 邵波,谢怀中,金孝纯.应用MIBK-冰醋酸体系改进无铅汽油中铅含量的测定[J].光谱实验室,2000,17(2):199-203. |
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| 作者姓名： | 邵波 谢怀中 金孝纯 |
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| 作者单位： | 广州石油化工总厂检验中心,广州市黄埔,510726 |
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| 摘 要： | 本文研究了ＧＢ／Ｔ ８０２０汽油中铅含量的测定方法（原子吸收光谱法），对该方法使用的溶剂进行了改进，在用ＭＩＢＫ稀释油样时，添加冰醋酸能更好地改善火焰燃烧性，降低背景，提高方法的灵敏度和溶剂体系的稳定性。经试验，冰醋酸的加入量以５％为宜，该法在实际运用中使标样的稳定时间明显延长，收到良好测定的效果。
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| 关 键 词： | 无铅汽油 铅含量 原子吸收光谱法 MIBK－冰醋酸 |
| 文章编号： | 1004-8138(2000)02-0199-005 |
| 修稿时间： | 1999-10-30 |
Improvement on Determination of Lead in Unleaded Gasoline by MIBK-Glacial Acetic Acid System |
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| SHAO Bo,XIE Huai-Zhong,JIN Xiao-Chun.Improvement on Determination of Lead in Unleaded Gasoline by MIBK-Glacial Acetic Acid System[J].Chinese Journal of Spectroscopy Laboratory,2000,17(2):199-203. |
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| Authors: | SHAO Bo XIE Huai-Zhong JIN Xiao-Chun |
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| Abstract: | The method of determining the content of lead in unleaded gasoline (GB/T8020) by flame atomic absorption is discussed and the solvent is improved. At the time of diluting sample by MIBK, adding glacial acetic acid can make flame combustibility better, cut down background, and improve the sensitivity of the method and the stability of solvent system. Testing proves adding 5% glacial acetic acid is suitable. The improved method can make the stable time of standard sample longer and achieve good result. |
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| Keywords: | Unleaded Gasoline Lead Content Atomic Absorption Spectrometry |
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